Merge branch 'master' into meta-psr-7

diff --cc wcfsetup/install/files/lib/acp/action/LogoutAction.class.php
index c5386cd5163cfbe308a3d167d867e1a683304e4a,8775d509ed25dc19e24f7e669031f6934fedc885..3bc2dcb9518970a2805aac84b4265a8d1f565265
--- 1/wcfsetup/install/files/lib/acp/action/LogoutAction.class.php
--- 2/wcfsetup/install/files/lib/acp/action/LogoutAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/LogoutAction.class.php
@@@ -33,10 -33,8 +33,8 @@@ class LogoutAction extends AbstractSecu
  
          $this->executed();
  
 -        HeaderUtil::redirect(LinkHandler::getInstance()->getLink());
 -
 -        exit;
 +        return new RedirectResponse(
-             LinkHandler::getInstance()->getLink(null, [
-                 'forceFrontend' => true,
-             ])
++            LinkHandler::getInstance()->getLink()
 +        );
      }
  }